纬纱密度
- 网络Weft density;Density of Weft
![纬纱密度](../cache/1332295.jpg)
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在织物图像预处理的研究上,本文提出了一种基于Hough变换的图像倾斜纠正与纬纱密度识别算法。
The main contributions of this dissertation include : On the study of fabric image preprocessing , this thesis proposes an algorithm for skew detection and weft yarn density recognition based on Hough transform .
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利用倾斜检测结果,本文还提出了一种与倾斜无关的纬纱密度识别算法。
In terms of the previous result , a novel algorithm to identify the weft density is also introduced , which is not affected by the image skew .
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最后根据倾斜检测结果,采用一种新的与倾斜无关的纬密识别算法,通过提取倾斜角处的投影轮廓线来得到纬密排列规律,并计算出纬纱密度。
Finally , based upon the skew detection process , a novel algorithm to identifying the weft density is introduced , which is independent of the image skew .
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经纱密度大的结构其经向压缩强度也大,同样,纬纱密度大的结构其纬向压缩强度也大;
The structure with bigger warp density behaves higher compression strength in warp direction , the structure with bigger weft density behaves higher compression strength in weft direction also ;
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利用聚丙烯纤维对亚麻纱线进行包缠,使用该纱线织造3种经纱密度相同,纬纱密度不同的平纹织物。
Polypropylene filaments were employed to wrap the flax yarn . 3 kinds of plain fabrics were woven with identical warp density and various well density by using the produced yams .
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通过对经编双轴向GF/PVC篷盖类柔性复合材料进行的拉伸、撕裂和剥离性能的测试分析,得出了衬经衬纬纱密度与拉伸、撕裂强力之间的关系。
Through the test and analysis on the tensile strength , tear resistance and peeling resistance of bi-axial warp knitted GF / PVC tenting flexible composites , the relationship between the density of inserted warp and weft yarns and the properties of tensile strength and tear resistance are summarized .
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本文提出织物紧密指数ψz,综合了织物经、纬纱支,密度,组织和几何结构相的信息,能比较全面地体现影响织物紧密性的各有关因素。
This paper recommends the compactness index of fabric ψ _s , which sums up all the information of warp and weft tex , density , fabric weave and geometric phase , thus more correctly reflecting the action of factors mentioned above .